PRODUCT OVERVIEW

The ADC-321 is an 8-bit, high speed, monolithic CMOS, sub-ranging A/D converter. The ADC-321 achieves a sampling rate comparable to flash converters by employing a sub-ran single +5V or dual +5V and +3.3V power source to allow easy interfacing with 3.3V logic.

An optional synchronous clamp function useful for video signal processing is provided. The ADC-321 is well suited for the portable video signal processors due to its low 125mW typical power dissipation. The ADC-321 also features ±0.5 LSB max. differential non-linearity, a self bias function that can eliminate the need for external references, SNR with THD of 45dB, a small 32-pin QFP package and an operating temperature range of –40 to +85°C

FEATURES

■ Low power dissipation (180mW max.)

■ Input signal bandwith (100MHz)

■ Optional synchronized clamp function

■ Low input capacitance (15pF typ.)

■ +5V or +5V /+3.3V power supply operation

■ Differential nonlinearity (±½LSB max.)

■ Optional self-biased reference

■ CMOS/TTL compatible inputs

■ Outputs 3-state TTL compatible

■ Surface mount package